second alternator

[hausburg 0]

Right so im gonna be running an mb quart q150 4 chan amp and a sundown 3500.

what i want to do is run the 4 chan off of the stock alt/electrical with big 3 and a yellow top.

a friend of mine has a 190 amp alt that he wants to sell me and hes also machinist so he can make brackets and whatever i would need to do this so mounting shouldnt be a problem.

i want to have the 2nd alt isolated from the cars electrical and simply dedicated to a bank of batteries (couple kinetic hc2400's or there abouts)

he said the alt is internally regulated to 14.8 v.

so i guess the question is.. is there anything wrong with running the 2nd alt like this? any hickups or potentially dangerous problems i might face? =X

thanks!

[Julian 641]

nothing wrong... but personally i'd just run it all together...

[hausburg 0]

nothing wrong... but personally i'd just run it all together...

so run the alts parallel? there wont be a problem with the voltage difference between the two?

[Julian 641]

shouldn't be, unless it's severe.

[Randal Johnson 544]

If the two alts put out the same charging voltages, I would wire them together ...

If they put out two different charging voltages, then you have to run them separate ...

but If i did this, i would run all stereo amps off the secondary alternator ...

just my suggestion here ...

[hausburg 0]

If the two alts put out the same charging voltages, I would wire them together ...

If they put out two different charging voltages, then you have to run them separate ...

but If i did this, i would run all stereo amps off the secondary alternator ...

just my suggestion here ...

theyre similar. and i would guess close enough. the HO alt is 14.8 and stock alt is 14.5 but thats with the vehicle at idle so i imagine the load the car draws probably drops its those few tenths.

the main reason why i wanted to run the 4 chan amp off of the stock alt is so the sundown mono has the HO alt all to it self if it was like a 300 amp alt then for sure i would run the whole stereo off of it, isolated from the cars electrical.

btw thanks for the replies guys!